Korean: (8-[(4-아미노-2-나이트로페닐)아조]-7-하이드록시-2-나프틸)트라이메틸암모늄 · CAS 71134-97-9 ·
Prohibited only in certain forms or uses MFDS prohibited ingredients
Conditions (official MFDS text, Korean):
염기성갈색17호에 불순물로 있는 염기성적색118호 제외
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 2026
No specific rule on file.
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How (8-[(4-Amino-2-nitrophenyl)azo]-7-hydroxy-2-naphthyl)trimethylammonium is treated in 4 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.
| Market | Status | Conditions |
|---|---|---|
| CN China | Prohibited only in certain forms or uses | MFDS summary (Korean): except Basic Red 118 as impurity in Basic Brown 17^염기성갈색17호에 불순물로 있는 염기성적색118호 제외 |
| AS ASEAN (10 countries) | Prohibited only in certain forms or uses | MFDS summary (Korean): 염기성갈색17호에 불순물로 있는 염기성적색118호 제외 |
| BR Brazil | Prohibited only in certain forms or uses | MFDS summary (Korean): (except Basic Red 118 as impurity in Basic brown 17)^염기성갈색17호에 불순물로 있는 염기성적색118호 제외^when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
| AR Argentina | Prohibited only in certain forms or uses | MFDS summary (Korean): (except Basic Red 118 as impurity in Basic brown 17)^염기성갈색17호에 불순물로 있는 염기성적색118호 제외^when used as a substance in hair dye products^염모제로 사용되는 경우에 한함 |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
(8-[(4-Amino-2-nitrophenyl)azo]-7-hydroxy-2-naphthyl)trimethylammonium (8-[(4-아미노-2-나이트로페닐)아조]-7-하이드록시-2-나프틸)트라이메틸암모늄
Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.
We found no specific rule for it in the EU's CosIng records. That is not an approval or a safety statement.
In Korea's MFDS records it is listed as “Prohibited only in certain forms or uses” (MFDS — cosmetic ingredient use restrictions). It is not a general ban; see the condition on the ingredient page.
We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.
Korea's MFDS standard Korean name is (8-[(4-아미노-2-나이트로페닐)아조]-7-하이드록시-2-나프틸)트라이메틸암모늄.
CAS 71134-97-9 (from official records).